Improved wash-boiler



`littillll bti-tiet i Hanni n; nonni-Ns, or BALTIMORE, MARYLAND.

Y Letters Patent No. 106,623, dated A'uglust'23, 1'8i'0f f;

` y IMPRovEDwAsH-BQILER,

V'l'.'he Schedule refer-rcito'. inthese Il'aettergaPatent` and imams: vaut of the same To all-whom it may concern:

`Be it known that I, HENRY- It. ROBBLNS, of Baltimore, in the county of Baltimore and State of Maryland, have invented a new and useful Improvement in`Autolnatic Wash-Boilers; and I do hereby declareV the following to be a full, clear, and exact description of the saule, referen'ce being had `to the :memn-l pahying diiiwing making a part of this specification,

in whichl AFigure lis a longitudinal vertical section, and' Figure 2 isa partial side elevation.

This invention has for its object to produce a ci r` eulation of the .water4 within a wash-boiler in a continuou's current by means of a pipe placed underneath theboilcr and opening at its ends into the 'same,'and' to keep such pipe always in contact. with the fuel in the firelbox, whether the quantity ofV fuel belargei".

small.

Inthe drawing-` A is a wash-boiler.' p a, acast metal pipe placed lengthwsebeneath the tached at its ends, and which pass upward through the bottom offtlie boiler.

c are 'ilanges'on -the couplings which abut against. `the under side jof the boiler,

' d e are flanges on the. couplings linside the boiler,

and solder-'ed to its bttom.

f is a tube closedat its top, haring perforations in itssides beneath the't'op, providedfwith valves'iat its lower end, opening downward 'audsol'dered into a ring, h, which has a screw-thread cut in its inner sur face, by means of which, when the'tuhe fis intro-Y duced within the'conpling b, 'the ring It may bescrewed upon the outside ofthe coupling, and the tube thus vscculedfiu place.

marevalves opening upward and attached to the. upper end of the coupling k.

' lis` apipewhich sits ou the tlange eo'utside the coupling k.

ois anV elbow-pipe, which sits on the outside ofthe When thepipe a islplaced on the burning fuel in the lire-.box cfa stove, the water in the pipe, being quickly expanded vby heat, seeks an outlet through the ,valves m.

an acquaintance with Vthe subject- '.io` supply its place-water vfrom the boiler enters- In this way a circulation of the water is obtained, whiclr cleanses clothingimore thoroughly than sinipleboiling vcan d o, as is well known to those having thepipe a through thevalves i.

The valves e' and m, one set opening downward aud the othe'r set opening upward, prevent therwater from issuing fromthe pipe in jets-as experiment shows it does in the case of a pipe "running through the firev box and opening at. both ends, without values, into a fixed-water-back.

'By means of the valves a continuous current 1s obtained.'

It is-olwiousthatthe pipea should be kept always ih contact with the burning fuel, as longas the boiler isv on the store, in order 4to obtai'ut-he greatest amount ofheat thereiiom. It is, therefore, desirable that the pipe should followv the fuel downward as'itlburns low."

To this end a' hand, B, of tin, or'cast ,or sheet-iron, is placed around the boiler A,loosely.itting it, so that the boiler may slide therein.

Q Vertical slots, a, are made inthe band, ii1to' \vhieh fprotrude pins,`v, extending horizontally from `the bottom of the boiler.

The slots are. coveredon -t l|e.outside`, as'shown in 'lheibottom vof the band rests on thetop ofthe stove, and the bottom of the boiler rest-s onjthe top of -the fuel in'the fire -boxt- The slots allownle tener m sink as" nie meine# creases, andthe band 4preuen'ts 'coldair fromcoming in Contact with' the lower part of the boiler, and also 'smoke from ascending into the room.

Having'th'ns described my'invention,

What I claim asne'w', and desire to secure LettersPatenu is-L- Y 1. The combination ofthe boiler A, pipe a, with valves 'i opening .downward, and valves m opening up# ward,substantially as andnfor the purpose specified.-

'f 2. The combination of the boiler.` A with `the bami Witnesses: l.

Gao. R. MCG'EE, Ino. T'. Herma 

